The exact source of this line is not widely documented, which is typical for short anime voice clips that circulate first as isolated soundboard and meme audio. Shared as a standalone reaction, it spread through anime edit communities, stream alerts and short video compilations where a brief, recognisable plea could be reused out of context. Its popularity comes from the senpai trope familiar to anime fans and from how easily the line works without any setup, so creators keep using it whenever an awkward, overly affectionate moment needs an instant punchline.